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| author | Milan Broz <mbroz@redhat.com> | 2007-06-13 15:56:39 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-08-04 09:10:24 -0700 |
| commit | e3158d9e1f8e1439c133428e36f814208fa699dd (patch) | |
| tree | 35e1b4185111b850f6126cebaa239b2c15b434d5 | |
| parent | 56d39b59e95b269654940a0d26904229781380e6 (diff) | |
| download | linux-stable-e3158d9e1f8e1439c133428e36f814208fa699dd.tar.gz linux-stable-e3158d9e1f8e1439c133428e36f814208fa699dd.tar.bz2 linux-stable-e3158d9e1f8e1439c133428e36f814208fa699dd.zip | |
dm crypt: disable barriers
Disable barriers in dm-crypt because of current workqueue processing can
reorder requests.
This must be addresed later but for now disabling barriers is needed to
prevent data corruption.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/md/dm-crypt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 4c2471ee054a..f68677d13c4a 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -954,6 +954,9 @@ static int crypt_map(struct dm_target *ti, struct bio *bio, struct crypt_config *cc = ti->private; struct crypt_io *io; + if (bio_barrier(bio)) + return -EOPNOTSUPP; + io = mempool_alloc(cc->io_pool, GFP_NOIO); io->target = ti; io->base_bio = bio; |